Nov 14, 2025 09:47:58 AM

Companies


Showing 601-625 of 5661 companies
YC W22
Boardcave logo

Boardcave

Building the world’s largest online surf gear store.

The one stop shop for surfers. Boardcave provides surfers with online surf knowledge and gear to accelerate their surfing. The company is reimagining how surfers progress and partake in ocean activities.

YC W22
Bobidi logo

Bobidi

Restaurant Loyalty Using Quiz

Bobidi runs Upswell, a platform that brings new guests to local restaurants and helps turn them into regulars. We transform restaurants’ promotional videos on social media into engaging quiz campaigns based on the video content. Winners receive cash rewards that can be redeemed at the restaurants.

YC S15
Bodyport logo

Bodyport

Predicting and preventing heart disease.

Bodyport’s cardiovascular sensing weight scale and predictive algorithms detect early changes in cardiac function to help prevent avoidable hospitalizations. Bodyport is initially targeting heart failure, a chronic condition affecting over 6M Americans and a leading cause of hospitalizations (1M/year) and healthcare spending ($35B/year). Bodyport’s novel scale measures cardiac output, congestion, heart rate, and other leading indicators of cardiovascular health — all in the same step patients already take to weigh themselves. Companion algorithms and software empower care teams to quickly identify at-risk patients and remotely optimize their therapy to prevent deterioration.

YC S21
BoldVoice logo

BoldVoice

Speech and accent coaching app for non-native English speakers

BoldVoice helps non-native English speakers to speak clearly and confidently. We combine bite-sized video lessons from Hollywood accent coaches with instant pronunciation feedback from AI, to create an effective and engaging learning experience.

YC F25
Bolna AI logo

Bolna AI

Voice AI to enable India's next billion

Bolna handles the complexity of voice infra, so enterprises can automate calls faster, better, and cheaper, at scale Bolna is a Voice AI Orchestration platform purpose-built for Indian enterprises. Businesses in India run tens of thousands of calls every day - across sales, support, collections, recruitment, and more. Bolna gives them the power to build and deploy Voice AI Agents directly from their transcripts and FAQs, so they can start automating calls immediately. With Bolna, enterprises get: 1. Full control over agent intelligence, tone, and workflows 2. Cost efficiency at scale with smart routing across providers and price points 3. Enterprise-grade performance on latency, interruptions, multi-language, and multi-accent understanding

YC S21
Bolster logo

Bolster

The platform for buying, selling and managing residential construction

We are building the Amazon for construction where contractors can give their customers an interactive shopping experience, turning the estimate into a point-of-sale, for the first time. It is a marketplace for general contractors, subcontractors, retailers and consumers, powered by a database of over 114,000 real items.

YC S23
Bolto logo

Bolto

AI Powered All-In-One Global HR + Recruiting

AI-powered recruiting and HR platform. Find and hire the best pre-vetted global software talent and simplify onboarding, payroll, and compliance.

YC X25
Bond logo

Bond

Your AI Chief of Staff

Our AI Chief of Staff gives CEOs and busy executives instant visibility into project progress, team performance and key company metrics. Eliminating status updates and saving execs 10+ hours a week.

YC W15
B

Bonfire

Bonfire is reimagining RFPs & bidding for gov procurement teams

Bonfire is the leading next-generation eSourcing / competitive bidding and RFx platform. Bonfire goes beyond the basic automation of eProcurement suites and older simple bidding tools, helping you to make better, faster decisions. It’s a collaborative, powerful, and insightful cloud-based platform for today’s procurement needs. We're focused on government procurement teams (which control ~18% of GDP) and enabling them to thrive in a world of crushing compliance requirements and very high workloads. Bonfire streamlines the entire RFx and bidding process, helping to run projects >50% faster. Bonfire empowers users with unparalleled evaluation features for deeper analysis, delivered through our distinctly intuitive and easy-to-use platform. Bonfire is trusted with over a billion dollars of supplier selection decisions per month, and is one of the fastest growing new procurement technologies.

YC W16
Bonsai logo

Bonsai

The all-in-one solution for small businesses and self-employed.

Founded with the purpose of empowering anyone to work for themselves, Bonsai is the trusted back-office software solution for 500,000+ small businesses and self-employed around the world. Bonsai helps individuals and teams manage their clients, deliver great work, get paid on time and track finances - all in the same place and integrated together to make running a business as seamless as possible.

YC F24
BookMyFlight logo

BookMyFlight

We make booking a flight as easy as booking an Uber.

YC W15
Booktrope logo

Booktrope

Booktrope provides a software platform that makes it easy for…

** NO LONGER IN BUSINESS ** Booktrope is reinventing the way books are published. We are not a self-publishing operation. What does that mean? At Booktrope we do not charge authors to publish nor do we accept all submissions. We have pioneered a concept called “Team Publishing” which addresses the way books are actually developed, not just the way they are distributed and read. We offer print, ebook, and web versions of all our books, in other words, we are format agnostic. We don’t want to debate the death of print books, or the birth of ebooks, we love and support them all. A typical Publishing Team consists of an author, editor, designer and business/marketing manager for the book. You don’t get assigned projects in our system; you choose the people you work with. We work much more quickly than traditional publishers, taking advantage of new technologies to streamline the process of getting books into the hands of readers. Lastly, we use that same technology to keep overhead low, and we think that the bulk of the revenue from book sales should go back to the creative team that makes them happen.

YC W16
Boom logo

Boom

Economically and environmentally sustainable supersonic travel

Boom Supersonic is transforming air travel with Overture, the world’s fastest airliner, optimized for speed, safety, and sustainability. Serving both civil and government markets, Overture will fly at twice the speed of today’s airliners and is designed to run on 100% sustainable aviation fuel (SAF). Symphony™, a Boom-led collaboration with industry leaders, is the propulsion system that will power Overture. Overture’s order book, including purchases and options from American Airlines, United Airlines, and Japan Airlines stands at 130 aircraft. Boom is working with Northrop Grumman for government and defense applications of Overture. Suppliers and partners collaborating with Boom on the Overture program include Collins Aerospace, Eaton, Florida Turbine Technologies (FTT), a business unit of Kratos Defense & Security Solutions, Inc., GE Additive, Safran Landing Systems, StandardAero and the United States Air Force. For more information, visit https://boomsupersonic.com Boom’s world-class engineering team comes from places including SpaceX, Boeing, Gulfstream, Virgin Galactic, Scaled Composites, NASA, and Bombardier. We have uniquely challenging and world-changing opportunities for the most talented aerospace engineers, designers, and business people.

YC F25
Boom AI logo

Boom AI

Your AI sales and support team for e-commerce brands

Boom builds the AI employee for e-commerce — an agent that manages every customer interaction across WhatsApp, Instagram, TikTok, Facebook, and web chat. It answers product questions, supports customers with orders, follows up on abandoned checkouts, restocks, and repeat purchases, and even runs marketing campaigns. Brands simply connect Boom to their store, and their AI agent instantly starts selling, supporting, and following up like a real team member — no setup or flow-building required. E-commerce is a $6T market where brands spend heavily to bring customers in, only to lose over 99% of them before checkout. Boom fixes that by turning every missed conversation into a sales opportunity. Our clients increase conversion rates and deliver a concierge-like buying experience at scale. We believe that in the near future, every online store will have AI employees managing sales and customer relationships — and Boom is building the platform that makes that possible.

YC S19
Boost Biomes logo

Boost Biomes

YC X25
Boost Robotics logo

Boost Robotics

Robots for the inspection and maintenance of data centers

Boost Robotics is building autonomous mobile manipulation robots to remotely perform manual tasks in data centers. The surge in AI applications is pushing data centers to scale faster than they can manage, leading to suboptimal operations and staffing shortages amid rising power and compute demands. We save data centers millions in insurance premiums and SLA violations by increasing the frequency of inspection and maintenance while reducing the time it takes to triage and address failures.

YC W14
B

Boostable

Advertising platform tools for marketplace sellers.

Boostable makes advertising easy for sellers and brands on marketplaces. We grow marketplaces by helping their sellers advertise their listings and gather insights. Boostable is a YCombinator company based in San Francisco and funded by SVAngel, 500 Startups and others.

YC S12
B

Boosted

Simple, fun, and fast electric vehicles.

Boosted designs and builds powerful lightweight electric vehicles that are extremely fun to ride and perfect for the last mile of your commute. We're driven by a passion for longboarding, electric vehicles, and beautiful design. Check us out at BoostedBoards.com!

YC S22
Boostly logo

Boostly

Premier growth platform for restaurants

Boostly provides everything necessary for restaurants to attract new guests and turn them into regulars. From AI-powered SEO, paid ads, behavioral-based text marketing with gamified engagement, and AI driven reputation management, Boostly provides 10x greater guest engagement when compared to others in the industry. Boostly’s patented processes enables them to build opted-in subscriber lists bigger and faster than anyone on the market.

YC S25
BootLoop logo

BootLoop

Firmware in minutes, not months - rigorously tested on real hardware

BootLoop is building the first AI agent to write and test firmware on real hardware. Existing AI coding assistants fail completely with embedded systems, but our agent ingests datasheets, schematics, and other design files to write firmware in your style and automatically test it on your hardware.

YC W23
Booth AI logo

Booth AI

Generative AI Photographer for E-Commerce

Booth AI enables companies to supercharge their creative output with a generative-AI powered image production platform. Booth AI replaces complicated, labor intensive, time consuming and expensive commercial product lifestyle photoshoots. Brand managers, merchandisers, and marketers can produce beautiful lifestyle images in a matter of seconds at a fraction of the cost of traditional photoshoots.

YC S13
B

Bop.fm

Canonical permalinks for songs.

bop.fm is a YCombinator-backed music technology company that creates a home for every song on the internet. The company aggregates several popular music services (Spotify, Rdio, iTunes, YouTube, SoundCloud, Deezer, etc.) into one interface. Users can then search for any song, play it using any service, and share/discover with any friend (even if they use a different service than you). bop.fm powers this same aggregation and service-agnostic music playback for Rap Genius, as well as music content publishers, messaging clients, social networks, artists/labels, and other partners.

YC S18
Bot MD logo

Bot MD

AI Clinical Assistant for Doctors

Bot MD is an A.I assistant for doctors. Our company's mission is to Empower Doctors around the world. Bot MD can be trained on any type of hospital content to provide instant answers to clinical questions.

a16z SR005
BotBot logo

BotBot

Aligning AI to brand and outcomes: the UX layer for the AI era.

At BotBot, we turn AI behavior into a closed-loop growth lever. Right now, behavior is trapped in code; brand, design, marketing, and product teams can’t own the experience. Our partners like Mattel, Bosch, Warner Bros., need a way in. BotBot gives them editable behavior (tone, timing, memory, upsells) with instant A/B and telemetry, so each variant maps to conversion, retention, CSAT, and containment. Design, ship to a cohort, read the lift, iterate. Same models, measurably better business results. This is the power of design and UX for AI.

YC W21
BotBuilt logo

BotBuilt

We use robots to build houses.

BotBuilt is creating flexible robotic systems to solve the housing crisis. Our cutting-edge software and cost-efficient hardware allow us to improve the world by providing beautiful construction, safer job sites, and sustainable building techniques. The $600 billion residential construction industry is facing a massive labor shortage. Our robotic systems leverage the latest in rapid prototyping, artificial intelligence, and computer vision. By taking on some of the hardest technical challenges on earth, BotBuilt is ready to help solve one of society’s biggest problems.